Salt shaker



The FIG. 1 is a perspective view of the salt shaker showing my new design;

The FIG. 2 is an elevation view of the salt shaker of FIG. 1;

The FIG. 3 is a top plan of the salt shaker of FIG. 1; and

The FIG. 4 is a bottom plan of the salt shaker of FIG. 1. 

The ornamental design for a salt shaker, as shown and described. 